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Point-Free is a video series exploring advanced topics in the Swift programming language, hosted by industry experts, Brandon and Stephen.
We finish a sneak peek of our upcoming Structured Queries library by showing how queries built with the library can be reused and composed together, and how we can replace all of the raw queries in our application with simpler, safer query builders.
Last week we released SharingGRDB, an alternative to SwiftData powered by SQLite, but there are a few improvements we could make. Let’s take a look at some problems with the current tools before giving a sneak peek at the solution: a powerful new query building library that leverages many advanced Swift features that we will soon build from scratch.
We celebrate 7 years with a live stream! We discuss some recent updates around our popular Sharing library; open source SharingGRDB live, which is a new lightweight alternative to SwiftData that is powered by Sharing and GRDB; and we give a sneak peek of an upcoming series and library.
We tackle the first screen in our Reminders app rewrite: the reminders lists view. We will take the @FetchAll property wrapper for a spin, which is like SwiftData’s @Query macro, but unlike @Query it can be used from both the view and observable models. And we will even get some end-to-end, snapshot test coverage of our feature in place.
What are the best, modern practices for persisting your application’s state? We explore the topic by rebuilding Apple’s Reminders app from scratch using SQLite, the most widely deployed database in all software. We will start by designing the schema that models our domain.
We close out our series on SQL query building with a library that can generate some seriously complex queries that select, join, group, aggregate, and filter data across tables. And we show how it can all play nicely with SQL strings by introducing a safe interface to SQL via a custom string interpolation.
We dissect some of the most important and interesting topics in Swift programming frequently, and deliver them straight to your inbox.
We cover both abstract ideas and practical concepts you can start using in your code base immediately.
Download a fully-functioning Swift playground from the episode so you can experiment with the concepts discussed.
We transcribe each video by hand so you can search and reference easily. Click on a timestamp to jump directly to that point in the video.
Architecture is a tough problem and there’s no shortage of articles, videos and open source projects attempting to solve the problem once and for all. In this collection we systematically develop an architecture from first principles, with an eye on building something that is composable, modular, testable, and more.
Swift 5.9 brings a powerful new feature to the language: macros. They allow you to implement new functionality into the language as if it was built directly in the language itself. However, they can be tricky to get right, and as such one needs to write an extensive test suite to make sure you have covered all of the subtle and nuanced edge cases that are possible.
SwiftUI is Apple’s declarative successor to UIKit and AppKit, and provides a wonderful set of tools for building applications quickly and effectively. It also provides a wonderful opportunity to explore problems around architecture and composition.
If you have ever created a binding using the get:set: initializer, you may want to reconsider. Doing so can hurt SwiftUI’s ability to animate your view. Luckily there is a better way. You can leverage @dynamicMemberLookup and subscripts to derive new bindings in a way that allows SwiftUI to propertly track where the binding came from.
You may have heard that “mocks are bad” and that they cause you to test the mock rather than your application’s actual feature. That doesn’t have to be the case. It is totally fine to mock a dependency to a system that you do not control, such as the file system. You do not need to test that saving and loading with that dependency works, but you should test how your application behaves when it tries to load or save data. For example, if loading data throws an error, do you show an alert to the user?
Watch us live write a complex SQL query to load “really important reminders”, and seamlessly integrate that state in our app. The database will automatically be observed for changes so that we can re-execute our query, and the view will immediately update when the data changes.
tfw you are excited for a 4 hour train ride because you'll have time to watch the new @pointfreeco episode 🤓🏔🚂 #MathInTheAlps #typehype
I bought the annual subscription and after I watched all videos and played with the sample code and libraries I can say it was the best money I spent in the last 12 months.
Just finished the mini-series on enum properties by @pointfreeco! They pointed out what’s missing from enums in Swift and used SwiftSyntax to generate code to add the missing parts. Thanks for your work @stephencelis and @mbrandonw! #pointfree
Please stop releasing one amazing video after the other! I'm still at Episode 15! #pointfreemarathon #androiddevhere
Just became a subscriber! I'm binge watching episodes now! Great content! I'm learning so much from you guys. The repo for the site is the best go-to reference for a well done project and swift-web is something I am definitely going to use in my projects. Thanks for everything!
Watching the key path @pointfreeco episodes, and I am like 🤯🤯🤯. Super cool
So many concepts presented at #WWDC19 reminded me of @pointfreeco video series. 👏👏 So happy I watched it before coming to San Jose.
This is surely one of the best shows for Swift folks out there! The content and explanation is at a really high bar!
Through videos you constantly introduce ideas and patterns only to later reformulate them into more general ideas. This is awesome and helped me understand a lot of programming concepts. Well done!
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